Quantum XChange Partners with YAC Co. to Deliver Quantum-Safe Cybersecurity Solutions to South Korea

Phio TX integrates with PQC and QKD to protect critical data against quantum decryption and AI-driven cyberattacks across Korean enterprises and government agencies.

BETHESDA, Md. & SEOUL — May 12, 2026 — Quantum XChange, a leader in quantum-safe network security, today announced a strategic partnership with YAC Co., Ltd., a Korea-based technology provider, to bring advanced post-quantum cryptography (PQC) solutions to organizations across South Korea.

Through this partnership, YAC will integrate Quantum XChange’s Phio TX® cryptographic management platform into its hybrid security offerings, enabling customers to protect sensitive data-in-motion today, respond to escalating nation-state threats including Harvest Now, Decrypt Later (HNDL) attacks, meet tighter regulatory oversight, and prepare for the post-quantum future. 

“At Quantum XChange, we empower enterprises and government agencies to secure network data against emerging risks from quantum computing and AI with an open, flexible architecture built for continuous cryptographic change,” said Fabien Adouani, Vice President of Business Development. “Through our partnership with YAC, we are delivering a practical, scalable approach to quantum-safe security in Korea—one that strengthens existing infrastructure today and enables seamless evolution to post-quantum standards.”

Delivering a Comprehensive Quantum-Safe Architecture

The joint solution combines multiple layers of quantum-resilient security into a unified offering tailored for the Korean market:

• Phio TX® as the crypto-agility and centralized key management layer
• Standards-based PQC to protect against future quantum decryption threats
• Integration with Quantum Key Distribution (QKD) from HEQA Security for physics-based key exchange
• Support for local cryptographic requirements

This hybrid architecture enables organizations to deploy quantum-safe security without disrupting existing infrastructure, while maintaining the flexibility to evolve as standards and threats change. The solution aligns with stringent global and regional requirements, including FIPS 203 validation of Phio TX for assurance against U.S. government PQC standards, ongoing Common Criteria certification as part of a forward-looking compliance roadmap, and support for local regulatory and national cryptographic requirements—particularly critical for financial institutions and government agencies operating in Korea’s highly regulated environment.

Differentiation Through Architecture and Flexibility

The combined offering goes beyond traditional “quantum-safe” claims by delivering a practical, deployable architecture:

• PQC deployed on existing network infrastructure, avoiding costly rip-and-replace
• Hybrid PQC + QKD approach for layered defense
• Centralized management and visibility through an intuitive management console
• True crypto-agility, enabling rapid algorithm updates as standards evolve
• Multi-vendor interoperability, including compatibility with environments such as Cisco and Juniper
• Containerized deployment options for flexible integration
• Support for local algorithm customization to meet national requirements
• Fast, non-disruptive deployment into existing networks

“By integrating Phio TX into our portfolio, we are delivering a differentiated, hybrid security solution that meets both global standards and local requirements,” said Woo Kim, CEO at YAC Co., Ltd. “Together, we are helping customers take immediate action against emerging quantum and AI threats.”

About Quantum XChange

Quantum XChange® empowers leading government agencies and commercial enterprises to secure sensitive network data from advances in AI and quantum computing by protecting their data-in-motion today and for the post-quantum world. We do this with our cryptographic management platform – Phio TX®, an open, secure and flexible architecture solution. For more information, visit www.quantumxc.com.

About YAC Co., Ltd. 

YAC Co., Ltd. is a leading provider of quantum-safe security solutions in South Korea, delivering advanced architectures that integrate PQC, QKD, and high-speed encryption to secure critical infrastructure. In collaboration with Quantum XChange, YAC enables organizations to transition to quantum-resilient security through crypto-agile platforms without disrupting existing networks.   For more information, visit www.yac-k.com.

Frequently Asked Questions

What is the Quantum XChange and YAC Co. partnership?

Quantum XChange and YAC Co. have partnered to deliver quantum-safe cybersecurity solutions to organizations in South Korea. The joint offering integrates Quantum XChange’s Phio TX cryptographic management platform with PQC and QKD technologies, providing a hybrid, crypto-agile architecture designed to protect sensitive data-in-motion against quantum and AI-driven threats.

Why does South Korea need quantum-safe security now?

Nation-state adversaries are executing Harvest Now, Decrypt Later (HNDL) attacks, collecting encrypted data today with plans to decrypt it when quantum computers mature. South Korean enterprises and government agencies, particularly in finance and defense, face immediate risk and tighter regulatory oversight that demands proactive quantum-safe measures.

What is Phio TX and how does it work?

Phio TX is Quantum XChange’s cryptographic management platform. It serves as the crypto-agility and centralized key management layer, enabling organizations to deploy, manage, and update cryptographic algorithms across their networks without replacing existing infrastructure. Phio TX holds FIPS validation (CAVP #6060 / CMVP #4850).

How does a hybrid PQC and QKD approach improve security?

A hybrid approach layers standards-based post-quantum cryptography with Quantum Key Distribution for physics-based key exchange. This defense-in-depth strategy protects data through multiple independent mechanisms, so a vulnerability in one layer does not compromise the entire system. The Quantum XChange and YAC solution deploys both methods on existing infrastructure without requiring network replacement.

Does the solution work with existing network infrastructure?

Yes. The joint solution deploys PQC on existing network infrastructure, eliminating the need for costly rip-and-replace upgrades. It supports multi-vendor environments including Cisco and Juniper, and offers containerized deployment options for flexible integration. Organizations maintain full crypto-agility to update algorithms as standards evolve.

Ready to Secure Your Network?

Learn how Quantum XChange and YAC Co. are bringing quantum-safe security to South Korea. Talk to our team about protecting your organization’s data-in-motion against quantum and AI-driven threats.

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